RECOVERY OF COPPER FROM PRINTED CIRCUIT BOARDS WASTE BY BIOLEACHING

被引：0
|
作者：
Yamane, Luciana Harue [1 ]
Romano Espinosa, Denise Crocce [1 ]
Soares Tenorio, Jorge Alberto [1 ]
机构：
[1] Univ Sao Paulo, Dept Met & Mat Engn, BR-05508030 Sao Paulo, Brazil
来源：
RECYCLING OF ELECTRONIC WASTE II: PROCEEDINGS OF THE SECOND SYMPOSIUM | 2011年
关键词：
Bioleaching; Printed circuit boards; Acidithiobacillus ferrooxidans; Shake flasks; Copper; ACIDITHIOBACILLUS-FERROOXIDANS; OXIDATION; PART; THIOOXIDANS; PROGRESS;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The present work investigated the influence of Fe+2 initial concentrations in the bioleaching of copper from printed circuit board using Acidithiobacillus ferrooxidans-LR. Printed circuit boards were collected from obsolete computers and mechanically processed through size reduction followed by magnetic separation. The bacteria Acidithiobacillus ferrooxidans-LR were grown and adapted in presence of printed circuit boards. A shake flask study was carried out on the printed circuit boards samples (non-magnetic fraction) using a rotary shaker under the following fixed conditions (185 rpm, 30 degrees C). The bioleaching efficiency was evaluated by comparison between the concentration in the initial sample and in the leached liquor, pH of the medium and concentration of ferrous iron produced. Inductively coupled plasma optical emission spectrometry (ICP-OES) was used to determine the metals concentration. The results showed that Acidithiobacillus ferrooxidans-LR leached 63% copper from printed circuit boards using supplemented medium with Fe+2.
引用
收藏
页码：45 / 52
页数：8
相关论文
共 50 条
  • [1] Copper recovery from waste printed circuit boards using pyrite as the bioleaching substrate
    Zexiang Xie
    Qaisar Mahmood
    Shaohui Zhang
    [J]. Environmental Science and Pollution Research, 2024, 31 (23) : 34282 - 34294
  • [2] Effect of Graphite on Copper Bioleaching from Waste Printed Circuit Boards
    Tong, Linlin
    Zhao, Qianfei
    Kamali, Ali Reza
    Sand, Wolfgang
    Yang, Hongying
    [J]. MINERALS, 2020, 10 (01)
  • [3] Recovery of copper from waste printed circuit boards
    Zhao, Y
    Wen, X
    Li, B
    Tao, D
    [J]. MINERALS & METALLURGICAL PROCESSING, 2004, 21 (02) : 99 - 102
  • [4] Copper recovery from waste printed circuit boards
    N. Santa
    V. Salinas
    [J]. Minerals & Metallurgical Processing, 2017, 34 (3) : 158 - 158
  • [5] Recovery of copper from waste printed circuit boards
    Y. Zhao
    X. Wen
    B. Li
    D. Tao
    [J]. Mining, Metallurgy & Exploration, 2004, 21 : 99 - 102
  • [6] Copper Recovery from Printed Circuit Boards from Smartphones Through Bioleaching
    de Andrade, Lidiane Maria
    Alvarez Rosario, Carlos Gonzalo
    de Carvalho, Mariana Alves
    Romano Espinosa, Denise Crocce
    Soares Tenorio, Jorge Alberto
    [J]. TMS 2019 148TH ANNUAL MEETING & EXHIBITION SUPPLEMENTAL PROCEEDINGS, 2019, : 837 - 844
  • [7] Factors influencing bioleaching copper from waste printed circuit boards by Acidithiobacillus ferrooxidans
    Yang, Tao
    Xu, Zheng
    Wen, Jiankang
    Yang, Limei
    [J]. HYDROMETALLURGY, 2009, 97 (1-2) : 29 - 32
  • [8] Recovery of copper from waste printed circuit boards by suspension electrolysis
    Zhang, Long
    Qiu, Lixin
    Xi, Xiaoli
    Ma, Liwen
    Zhang, Liwen
    Wang, Zhihong
    Zhou, Jifeng
    [J]. METALLURGY TECHNOLOGY AND MATERIALS II, 2013, 813 : 452 - +
  • [9] A Green Process for Copper Recovery from Waste Printed Circuit Boards
    Zhang, Zhi Yuan
    Zhang, Fu-Shen
    [J]. SELECTED PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON WASTE MANAGEMENT AND TECHNOLOGY, 2014, 878 : 374 - 379
  • [10] Catalytic effect of graphene in bioleaching copper from waste printed circuit boards by Acidithiobacillus ferrooxidans
    Gu, Weihua
    Bai, Jianfeng
    Dong, Bin
    Zhuang, Xuning
    Zhao, Jing
    Zhang, Chenglong
    Wang, Jingwei
    Shih, Kaimin
    [J]. HYDROMETALLURGY, 2017, 171 : 172 - 178
12345